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PyroUSB Series

Operator’s Guide

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Summary of Contents for PyroUSB Series

Page 1: ...PyroUSB Series Operator s Guide ...

Page 2: ...asure from 200 C to 1650 C They are filtered at a wavelength where glass is least reflective making them ideal pyrometers for glass surface temperature measurement SPECIFICATIONS Model PUA2 PUA5 PUA8 Spectral Response 2 0 to 2 6 µm 2 2 µm nominal 5 µm 8 to 14 µm Application Ferrous metals and high temperature targets Glass General purpose Temperature range Choice of ranges from 45 C to 2000 C Choi...

Page 3: ...1 8 m ENVIRONMENTAL Environmental Rating IP65 Ambient Operating Temperature 0 C to 70 C cooled models are available for higher temperatures Relative Humidity 95 max non condensing DIMENSIONS MINIMUM MEASURABLE TEMPERATURE PUA2 151 LT ONLY 160 140 120 100 80 60 40 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 Tmin C ε TS 70 C TS 50 C TS 25 C Graph showing the minimum measurable object temperature Tmin de...

Page 4: ...000 C Field of view PUA2 151 15 1 divergent optics LT PT models only 251 25 1 divergent optics 751 75 1 divergent optics PUA5 251 25 1 divergent optics PUA8 301 30 1 divergent optics CF Close focus optics focal spot size 5 mm at 100mm distance Spectral response PUA2 2 2 µm for measuring reflective metals and high temperature objects PUA5 5 µm for measuring glass surface temperature PUA8 8 to 14 µm...

Page 5: ...es stance Sensor to object mm 100 215 3 9 8 5 59 1 118 1 59 1 118 1 1500 3000 1500 3000 D S 25 1 D S 15 1 251 tance Sensor to object inches tance Sensor to object mm 20 55 0 8 2 2 D S 75 1 751 151 Spot Dia inches Spot Dia mm Distance Sensor to object inches Distance Sensor to object mm 15 7 5 30 0 6 0 3 1 2 0 19 7 39 4 0 500 1000 CF Distance Sensor to object inches Distance Sensor to object mm 15 ...

Page 6: ... location where energy from lamps heaters and sunlight cannot be reflected from the target into the lens The use of shields may help in this respect For further information and assistance contact Calex AMBIENT TEMPERATURE The sensor is designed to operate in ambient temperatures from 0 C to 70 C For ambient temperatures above 70 C an air water cooled housing will be required Avoid thermal shock Al...

Page 7: ...ed and adjustable mounting bracket accessories which are shown below AIR WATER COOLED HOUSING The air water cooled housing shown below allows the sensor to withstand high ambient temperatures It is equipped with two 1 8 BSP fittings Water temperature should be 10 C to 27 C for efficient cooling Chilled water below 10 C is not recommended To avoid condensation the air purge collar should be used wi...

Page 8: ...oller indicator with the 24 V DC power supply in the loop using the following table and connection diagram as a guide The maximum loop impedance is 900 ohms Note The sensor must be grounded at only one point either the cable shield or the sensor housing Output Wire No Wire Colour Function 4 to 20 mA 1 Red Power supply signal 2 Black Power supply signal 3 Bare Shield ground Alternatively to use the...

Page 9: ...tem Requirements Windows 7 or newer USB 2 0 port Internet access for software download Installation 1 Download and run the software installer at www calex co uk software 2 Follow the on screen instructions NOTE Do not use any other USB cable than the one supplied with the sensor Do not connect the sensor to the PC before the software is installed CONNECTING THE SENSOR TO A PC 1 Connect the circula...

Page 10: ...s Default setting 0 Peak valley hold processing If required hold processing can be applied by setting Hold Mode to Peak or Valley and setting the hold period This is useful if the temperature reading is interrupted by gaps between moving objects or by an obstruction Default settings Hold Mode Off Hold Period 0 Emissivity and Compensation From the Settings menu go to Emissivity and Compensation Emi...

Page 11: ...4 1 Temperature range PUA2 only 0 LT 1 PT 2 MT 3 HT R 0x05 1 Modbus slave address R W 0x06 1 Reflected Energy Compensation 0 Off 1 On R W 0x07 1 Reflected Temperature R W 0x08 1 Emissivity 1 LSB 0 0001 Minimum 0 1000 Maximum 1 0000 R W 0x09 1 Window Transmissivity 1 LSB 0 0001 Minimum 0 2000 Maximum 1 0000 For when using the sensor with an IR window R W 0x0A 1 Output Scale Temperature at 4 mA R W ...

Page 12: ... volatile memory Use this register when writing frequently R W 0x18 1 Emissivity 1 LSB 0 0001 Minimum 0 1000 Maximum 1 0000 Not saved to non volatile memory Use this register when writing frequently R W Notes 1 All temperature are in tenths of degrees C 2 With the exception of addresses 0x17 and 0x18 all write operations are saved to non volatile memory 3 For further information please refer to ht...

Page 13: ...efore taking or recording measurements Do not operate the sensor near large electromagnetic fields e g around arc welders or induction heaters Electromagnetic interference can cause measurement errors Wire must be connected only to the appropriate terminals Do not open the sensor housing This will damage the sensor and invalidate the warranty MAINTENANCE Our customer service representatives are av...

Page 14: ...hanging the emissivity setting Field of view obstruction Remove obstruction ensure sensor has a clear view of target Dust or condensation on lens Ensure lens is clean and dry Clean gently with a soft lens cloth and water If problem recurs consider using an air purge collar Incorrect wire connections Check wire colour codes and tags see WIRING Output temperature scale mismatch Re scale input temper...

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Page 16: ...16 Calex Electronics Limited PO Box 2 Leighton Buzzard Bedfordshire England LU7 4AZ Tel 44 0 1525 373178 mail calex co uk www calex co uk Issue K Dec 19 ...

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